PhD Position Microclimate Adaptive Grid CFD Modeling

Job description

Crop microclimate plays a vital role in optimizing productivity of greenhouse crops, yet accurate knowledge of variations in greenhouse microclimates remains limited. In particular, understanding of the interactions between the crop vegetation structure and their microclimate environment remains a challenge. In this PhD research you will develop CFD models at different scales, from 2D and 3D techniques resolving the plant-structure and flows at the leaf-to-plant scale, to multi-layered plant-climate models resolving canopy-scale fluxes to porous media models representing airflow and fluxes at the full greenhouse or vertical farm scale. An important challenge in connecting these models lies in a proper representation of the aerodynamic and flux resistances and plant-climate interactions at each hierarchical scale.

Your research will focus on numerical CFD modeling using adaptive grids to represent the leaf-plant-canopy climate gradients and fluxes for improved prediction of crop-climate interactions. You will start by implementing a geometric idealized plant model in the CFD model to represent the plant structure and study the impact of airflows on turbulence and aerodynamic resistance inside the canopy and on heat diffusion and temperature penetration in response to radiation. Results will be compared with experimental data collected by another PhD researcher in the same project. A next step will be to extend the CFD model with mass fluxes of CO2 and water vapor and study the impact of airflows and sensible heat flux on mass fluxes and their associated source and sink terms from the vegetation. Based on these findings you will develop conceptual representations using resistance analogies, to transfer the identified relationships to a multi-layer model structure that can be used at the greenhouse scale.

In this project you will work in close collaboration with a team of PhD researchers and postdocs as well as project partners from industry and the horticulture sector. Therefore, communication skills and proven ability to work productively in a team are very important. You will work closely with two supervisors – Marie-Claire ten Veldhuis (experimental expertise) and Bas van de Wiel (theoretical expertise) – and a dedicated technician. This team-oriented supervision approach has proven effective in previous projects, with weekly joint whiteboard sessions.

You will be hosted by the Geoscience & Remote Sensing Department in the Faculty of Civil Engineering and Geosciences at TU Delft. As part of our diverse and dedicated team of professors, lecturers, PhD and postdoc researchers, you will have the opportunity to work closely with leading experts and industry partners at the national and international level. Our unique facilities provide an ideal environment for experimental research and innovation. Here, you will receive all the support and coaching you need to develop further your career.

Job requirements

• You hold an MSc in applied physics, atmospheric science, or a related field.
• You have proven relevant project/thesis experience with complex CFD simulations.
• You are a team player and enjoy interdisciplinary collaboration.
• You have a good command of written and spoken English.     

TU Delft (Delft University of Technology)
Working at TU Delft means contributing to solutions that really make a difference.

For over 180 years, we have been training engineers who make an impact worldwide in companies, government bodies, or as entrepreneurs. Our alumni turn knowledge into concrete solutions for the challenges of today and tomorrow.

These challenges are changing rapidly. That is why we focus on themes such as energy, climate, digitalisation, artificial intelligence (AI), and smart mobility every day. Our education and research are directly aligned with what society needs now and in the future.

At TU Delft, our people make the difference. With their knowledge and curiosity, our staff provide a high-quality education and conduct pioneering research that extends beyond the campus. You will have the opportunity to take the initiative, work with others, and grow as a professional.

Working at TU Delft means join an international community of professionals and students. Together, we create knowledge, innovations, and solutions that help move the world forward.

Faculty of Civil Engineering and Geosciences
The Faculty of Civil Engineering & Geosciences (CEG) is committed to outstanding international research and education in the field of civil engineering, applied earth sciences, traffic and transport, water technology, and delta technology. Our research feeds into our educational programmes and covers societal challenges such as climate change, energy transition, resource availability, urbanisation and clean water. Our research projects are conducted in close cooperation with a wide range of research institutions. CEG is convinced of the importance of open science and supports its scientists in integrating open science in their research practice. The Faculty of CEG comprises 28 research groups in the following seven departments: Materials Mechanics Management & Design, Engineering Structures, Geoscience and Engineering, Geoscience and Remote Sensing, Transport & Planning, Hydraulic Engineering and Water Management.

Click here to go to the website of the Faculty of Civil Engineering & Geosciences.

PhD Position in Microclimate Sensing - Experimental Research

Job description

Crop microclimate plays a vital role in optimizing productivity of greenhouse crops, yet accurate knowledge of microclimate remains limited. Sensing microclimate variability and gradients in greenhouses and vertical farms comes with specific scientific challenges: sensors must be (1) accurate enough to capture small-scale microclimate variations, and (2) representative of the local microclimate without altering it by their presence. In this PhD project you will help advance novel experimental and theoretical approaches to uncover the complex heat, CO2 and moisture transfer dynamics in greenhouses and vertical farms.

Your PhD research will focus on experimental work, developing new microclimate sensing setups probing the microclimate in and above greenhouse canopies. You will build and test multiple versions of microclimate boxes using different shield configurations and absorbance/reflection material and compare against reference sensors (fine-wire thermometer, high-accuracy hot-wire anemometer for low airflows etc.) in a microclimate sensing setup at Unifarm (WU). Eventually the goal is to design and implement a network of autonomous climate boxes (radiation, T, RH, CO2), including IoT solutions for data communication. In addition to the experimental work, you will analyze in-canopy temperature, water vapor, CO2 profiles & vertical gradients to identify flux-gradient relationships in and above the canopy, addressing questions such as: does the resistance analogy for flux-gradient relationships hold inside the canopy, what is the role of leaf-scale resistance (stomata, boundary layer) relative to aerodynamic resistance (in-canopy airflows), how can they be represented in a multi-layer approach, how to implement source and sink terms of water vapor and CO2.

In this project you will work in close collaboration with a team of PhD researchers and postdocs as well as project partners from industry and the horticulture sector. Therefore, communication skills and proven ability to work productively in a team are important. You will work closely with two supervisors – Marie-Claire ten Veldhuis (experimental expertise) and Bas van de Wiel (theoretical expertise) – and a dedicated technician. This team-oriented supervision approach has proven effective in previous projects, with weekly joint whiteboard sessions.

You will be hosted by the Water Management Department in the Faculty of Civil Engineering and Geosciences at TU Delft. As part of our diverse and dedicated team of professors, lecturers, PhD and postdoc researchers, you will have the opportunity to work closely with leading experts and industry partners at the national and international level.

Job requirements

• You hold an MSc in applied physics, atmospheric science, or a related field.
• You have proven relevant project or thesis experience in experimental work.
• You are a team player and enjoy interdisciplinary collaboration.
• You have a good command of written and spoken English.     

TU Delft
Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context.

At TU Delft we embrace diversity as one of our core values and we actively engage to be a university where you feel at home and can flourish. We value different perspectives and qualities. We believe this makes our work more innovative, the TU Delft community more vibrant and the world more just. Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale. That is why we invite you to apply. Your application will receive fair consideration.

Challenge. Change. Impact!

The Faculty of Civil Engineering & Geosciences
The Faculty of Civil Engineering & Geosciences (CEG) is committed to outstanding international research and education in the field of civil engineering, applied earth sciences, traffic and transport, water technology, and delta technology. Our research feeds into our educational programmes and covers societal challenges such as climate change, energy transition, resource availability, urbanisation and clean water. Our research projects are conducted in close cooperation with a wide range of research institutions. CEG is convinced of the importance of open science and supports its scientists in integrating open science in their research practice. The Faculty of CEG comprises 28 research groups in the following seven departments: Materials Mechanics Management & Design, Engineering Structures, Geoscience and Engineering, Geoscience and Remote Sensing, Transport & Planning, Hydraulic Engineering and Water Management.

Click here to go to the website of the Faculty of Civil Engineering & Geosciences.

PhD Position Microclimate Adaptive Grid CFD Modeling

Job description

Crop microclimate plays a vital role in optimizing productivity of greenhouse crops, yet accurate knowledge of variations in greenhouse microclimates remains limited. In particular, understanding of the interactions between the crop vegetation structure and their microclimate environment remains a challenge. In this PhD research you will develop CFD models at different scales, from 2D and 3D techniques resolving the plant-structure and flows at the leaf-to-plant scale, to multi-layered plant-climate models resolving canopy-scale fluxes to porous media models representing airflow and fluxes at the full greenhouse or vertical farm scale. An important challenge in connecting these models lies in a proper representation of the aerodynamic and flux resistances and plant-climate interactions at each hierarchical scale.

Your research will focus on numerical CFD modeling using adaptive grids to represent the leaf-plant-canopy climate gradients and fluxes for improved prediction of crop-climate interactions. You will start by implementing a geometric idealized plant model in the CFD model to represent the plant structure and study the impact of airflows on turbulence and aerodynamic resistance inside the canopy and on heat diffusion and temperature penetration in response to radiation. Results will be compared with experimental data collected by another PhD researcher in the same project. A next step will be to extend the CFD model with mass fluxes of CO2 and water vapor and study the impact of airflows and sensible heat flux on mass fluxes and their associated source and sink terms from the vegetation. Based on these findings you will develop conceptual representations using resistance analogies, to transfer the identified relationships to a multi-layer model structure that can be used at the greenhouse scale.

In this project you will work in close collaboration with a team of PhD researchers and postdocs as well as project partners from industry and the horticulture sector. Therefore, communication skills and proven ability to work productively in a team are very important. You will work closely with two supervisors – Marie-Claire ten Veldhuis (experimental expertise) and Bas van de Wiel (theoretical expertise) – and a dedicated technician. This team-oriented supervision approach has proven effective in previous projects, with weekly joint whiteboard sessions.

You will be hosted by the Geoscience & Remote Sensing Department in the Faculty of Civil Engineering and Geosciences at TU Delft. As part of our diverse and dedicated team of professors, lecturers, PhD and postdoc researchers, you will have the opportunity to work closely with leading experts and industry partners at the national and international level. Our unique facilities provide an ideal environment for experimental research and innovation. Here, you will receive all the support and coaching you need to develop further your career.

Job requirements

• You hold an MSc in applied physics, atmospheric science, or a related field.
• You have proven relevant project/thesis experience with complex CFD simulations.
• You are a team player and enjoy interdisciplinary collaboration.
• You have a good command of written and spoken English.     

TU Delft (Delft University of Technology)
Working at TU Delft means contributing to solutions that really make a difference.

For over 180 years, we have been training engineers who make an impact worldwide in companies, government bodies, or as entrepreneurs. Our alumni turn knowledge into concrete solutions for the challenges of today and tomorrow.

These challenges are changing rapidly. That is why we focus on themes such as energy, climate, digitalisation, artificial intelligence (AI), and smart mobility every day. Our education and research are directly aligned with what society needs now and in the future.

At TU Delft, our people make the difference. With their knowledge and curiosity, our staff provide a high-quality education and conduct pioneering research that extends beyond the campus. You will have the opportunity to take the initiative, work with others, and grow as a professional.

Working at TU Delft means join an international community of professionals and students. Together, we create knowledge, innovations, and solutions that help move the world forward.

Faculty of Civil Engineering and Geosciences
The Faculty of Civil Engineering & Geosciences (CEG) is committed to outstanding international research and education in the field of civil engineering, applied earth sciences, traffic and transport, water technology, and delta technology. Our research feeds into our educational programmes and covers societal challenges such as climate change, energy transition, resource availability, urbanisation and clean water. Our research projects are conducted in close cooperation with a wide range of research institutions. CEG is convinced of the importance of open science and supports its scientists in integrating open science in their research practice. The Faculty of CEG comprises 28 research groups in the following seven departments: Materials Mechanics Management & Design, Engineering Structures, Geoscience and Engineering, Geoscience and Remote Sensing, Transport & Planning, Hydraulic Engineering and Water Management.

Click here to go to the website of the Faculty of Civil Engineering & Geosciences.

PhD Position in Microclimate Sensing - Experimental Research

Job description

Crop microclimate plays a vital role in optimizing productivity of greenhouse crops, yet accurate knowledge of microclimate remains limited. Sensing microclimate variability and gradients in greenhouses and vertical farms comes with specific scientific challenges: sensors must be (1) accurate enough to capture small-scale microclimate variations, and (2) representative of the local microclimate without altering it by their presence. In this PhD project you will help advance novel experimental and theoretical approaches to uncover the complex heat, CO2 and moisture transfer dynamics in greenhouses and vertical farms.

Your PhD research will focus on experimental work, developing new microclimate sensing setups probing the microclimate in and above greenhouse canopies. You will build and test multiple versions of microclimate boxes using different shield configurations and absorbance/reflection material and compare against reference sensors (fine-wire thermometer, high-accuracy hot-wire anemometer for low airflows etc.) in a microclimate sensing setup at Unifarm (WU). Eventually the goal is to design and implement a network of autonomous climate boxes (radiation, T, RH, CO2), including IoT solutions for data communication. In addition to the experimental work, you will analyze in-canopy temperature, water vapor, CO2 profiles & vertical gradients to identify flux-gradient relationships in and above the canopy, addressing questions such as: does the resistance analogy for flux-gradient relationships hold inside the canopy, what is the role of leaf-scale resistance (stomata, boundary layer) relative to aerodynamic resistance (in-canopy airflows), how can they be represented in a multi-layer approach, how to implement source and sink terms of water vapor and CO2.

In this project you will work in close collaboration with a team of PhD researchers and postdocs as well as project partners from industry and the horticulture sector. Therefore, communication skills and proven ability to work productively in a team are important. You will work closely with two supervisors – Marie-Claire ten Veldhuis (experimental expertise) and Bas van de Wiel (theoretical expertise) – and a dedicated technician. This team-oriented supervision approach has proven effective in previous projects, with weekly joint whiteboard sessions.

You will be hosted by the Water Management Department in the Faculty of Civil Engineering and Geosciences at TU Delft. As part of our diverse and dedicated team of professors, lecturers, PhD and postdoc researchers, you will have the opportunity to work closely with leading experts and industry partners at the national and international level.

Job requirements

• You hold an MSc in applied physics, atmospheric science, or a related field.
• You have proven relevant project or thesis experience in experimental work.
• You are a team player and enjoy interdisciplinary collaboration.
• You have a good command of written and spoken English.     

TU Delft
Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context.

At TU Delft we embrace diversity as one of our core values and we actively engage to be a university where you feel at home and can flourish. We value different perspectives and qualities. We believe this makes our work more innovative, the TU Delft community more vibrant and the world more just. Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale. That is why we invite you to apply. Your application will receive fair consideration.

Challenge. Change. Impact!

The Faculty of Civil Engineering & Geosciences
The Faculty of Civil Engineering & Geosciences (CEG) is committed to outstanding international research and education in the field of civil engineering, applied earth sciences, traffic and transport, water technology, and delta technology. Our research feeds into our educational programmes and covers societal challenges such as climate change, energy transition, resource availability, urbanisation and clean water. Our research projects are conducted in close cooperation with a wide range of research institutions. CEG is convinced of the importance of open science and supports its scientists in integrating open science in their research practice. The Faculty of CEG comprises 28 research groups in the following seven departments: Materials Mechanics Management & Design, Engineering Structures, Geoscience and Engineering, Geoscience and Remote Sensing, Transport & Planning, Hydraulic Engineering and Water Management.

Click here to go to the website of the Faculty of Civil Engineering & Geosciences.

Management/Office-assistent faculteit TBM - afdeling Multi-Actor Systems, sectie Beleidsanalyse

Functieomschrijving

Dit ga je doen:

Als management assistent binnen de sectie Beleidsanalyse ben jij samen met twee collega’s de spil van het team. Jullie ondersteunen een diverse groep van zo’n 80 medewerkers en gasten waarvoor jullie samen zorgen dat alles op rolletjes loopt. Je hebt dagelijks contact met collega’s, studenten en internationale bezoekers – zowel online als op locatie – en bent vaak het eerste aanspreekpunt.

Je vindt het leuk om met verschillende mensen en systemen te werken. Je blijft graag op de hoogte van nieuwe tools en denkt mee over hoe processen slimmer en efficiënter kunnen. Je weet wat prioriteit heeft en werkt zelfstandig en proactief.

Jouw taken in het kort:

• Beheren van meerdere (soms complexe) agenda’s.
• Ondersteunen bij HR-, financiële en reisadministratie.
• Regelen van bestellingen (bijv. kantoorartikelen, IT-middelen).
• Beantwoorden van e-mails en telefoon.
• Verstrekken van informatie in zowel Nederlands als Engels.
• Ondersteunen bij meetings, events en andere activiteiten van de sectie.

Jouw werkomgeving;

Je komt terecht bij de sectie Beleidsanalyse, onderdeel van de afdeling Multi-Actor Systems binnen de faculteit Techniek, Bestuur en Management van de TU Delft.

Je werkt nauw samen met de twee andere secretaresses binnen de sectie. Bij afwezigheid nemen jullie elkaars taken waar.

De sfeer is open, collegiaal en informeel in het onderlinge contact, met ruimte voor jouw ideeën en initiatief.

Functie-eisen

• Je bent vriendelijk, representatief, servicegericht en leergierig.
• Je werkt oplossingsgericht en nauwkeurig.
• Je denkt mee en twee stappen vooruit.
• Je toont initiatief.
• Je spreekt en schrijft goed Nederlands en Engels. Is je Engels nog niet zo goed, dan kun je tijdens werktijd een interne cursus volgen om je Engels te verbeteren.

Reageer als je:

• Ervaring hebt als managementassistent (of vergelijkbare functie).
• Minimaal MBO-niveau.
• Affiniteit hebt met het werken met verschillende digitale systemen.
• Ervaring hebt met het MS Office 365 pakket.
• De Nederlandse en bij voorkeur ook de Engelse taal goed beheerst.

Goed om te weten;

We starten met een contract voor 1 jaar, bij goed functioneren kan dit omgezet worden naar een vast contract.

Als het gaat om de omvang van je contract: de functie heeft een omvang van minimaal 24 uur en maximaal 32 uur per week (0,6fte - 0,8fte).

Ook gedeeltelijk thuiswerken behoort tot de mogelijkheden.

TU Delft
Werken bij TU Delft betekent bijdragen aan oplossingen die er echt toe doen.

Al meer dan 180 jaar leiden we ingenieurs op die wereldwijd impact maken bij bedrijven, overheden of als ondernemer. Onze alumni zetten kennis om in concrete oplossingen voor de uitdagingen van vandaag en morgen.

Die uitdagingen veranderen snel. Daarom werken we elke dag aan thema’s zoals energie, klimaat, digitalisering, AI en slimme mobiliteit. Ons onderwijs en onderzoek sluiten direct aan op wat de samenleving nodig heeft, nu en straks.

Bij TU Delft maken mensen het verschil. Met hun kennis en nieuwsgierigheid zorgen zij voor sterk onderwijs, vernieuwend onderzoek en innovaties die verder komen dan de campus. Je krijgt de ruimte om initiatief te nemen, samen te werken en jezelf te ontwikkelen.

Wie bij TU Delft werkt, sluit zich aan bij een internationale community van professionals en studenten. Samen bouwen we aan kennis, innovatie en oplossingen die de wereld vooruithelpen.

Faculteit Techniek, Bestuur & Management
De Faculteit TBM levert een belangrijke bijdrage aan het oplossen van complexe, technisch-maatschappelijke vraagstukken. Dit betreft actuele vraagstukken zoals de energietransitie, mobiliteit, digitalisering, waterbeheer en (cyber)security. Dit doet TBM met haar uitstekende onderwijs en onderzoek op het raakvlak van techniek, maatschappij en bestuur. TBM combineert inzichten uit de technische wetenschappen, de sociale en de geesteswetenschappen. TBM is kennisgericht, internationaal georiënteerd en beschikt over een uitgebreid netwerk van kennisinstellingen, bedrijven, maatschappelijke organisaties en overheden.

Klik hier om naar de website van faculteit Techniek, Bestuur en Management te gaan.