موقعیت‌های خالی در دانشگاه‌های خارج از کشور (رعایت قوانین پست اول الزامی است)

[rmojtaba]

PhD Fellowship: Salts, Advanced development of inorganic salt mixtures and nano-fluids as thermal energy storage (TES) materials for concentrated solar power (CSP) application
CIC ENERGIGUNE, Spain
The selection process ends once a candidate is selected

Ph.D project description
The development of thermal energy storage (TES) systems has become an interesting way to upgrade the concentrated solar power (CSP) technologies. TES systems help to extend the power generation during low irradiance periods or at night allowing the decoupling of the solar radiation and electricity production times. Currently, the TES technologies are mainly based on sensible heat storage in the double tank concept using inorganic salts as storage media. These inorganic salts are not only the most used materials for sensible heat storage (Solar Slat) in commercial CSP plants but also the most promising materials for latent heat storage applications. Enhancing their thermophysical properties can largely improve the thermodynamic cycle efficiency of the TES system and consequently achieving a significant electricity cost reduction.
The aim of this Ph.D work is to develop new inorganic salt mixtures with low melting, high decomposition temperature and improved thermophysical properties such as specific heat, latent heat and thermal conductivity, etc.

Qualification requirements
We are looking for candidates preferably with a master degree in Chemistry, Physics, or other scientific disciplines in a related field or equivalency required. Good knowledge of English is required.

Application
All applicants are invited to submit a detailed curriculum vitae and a motivation letter through the webpage of CIC Energigune (http://www.cicenergigune.com

Career Stage
Early stage researcher or 0-4 yrs (Post graduate

Comment/web site for additional job details
www.cicenergigune.com

[rmojtaba]

Postdoc Position in Mesoscopic Modeling of Dendritic Solidification
Institut Jean Lamour, France
Deadline: 28 Sep 2015

THE PROJECT
You will be working on the development of a novel model that will enable us to study the solidification of a large population of dendritic grains in metal alloys. This new mesoscopic approach overcomes the limitations of established microscopic phase-field methods. It can be applied at larger scales and can include the flow of the liquid phase. The physics includes convective and diffusive transport of heat and chemical species, fluid flow, liquid-solid phase change in multicomponent mixtures, and the growth kinetics of the dendrite tips. You will build upon the existing first version of the model, which we implemented as a new in-house OpenFOAM® solver—CrystalFOAM. You will perform research on theoretical and numerical aspects, develop applications and interact with experimental researchers. While focusing on fundamental research, the project has an important impact on our applied research, where we collaborate with several industrial partners.

DURATION
18 months, starting date possible from October 1, 2015

SCIENTIFIC SUPERVISORS
Miha Založnik, Associate Scientist CNRS
Hervé Combeau, Professor at Ecole des Mines de Nancy

Numberr of positions available : 1

Web site for additional job details
https://filex.univ-lorraine.fr/get?k...MqMHdOTQdFW0sB

[rmojtaba]

Postdoctoral Research Assistant: Mathematical Modelling of the Atmosphere to Ocean Momentum Transfer by Sea Ice
University of Reading, United Kingdom
Deadline: 07 Sep 2015

Job description
The reduction of the Arctic sea ice cover is a prominent indication of climate change and has excited considerable scientific and general interest. The inability of climate models to adequately represent the rate of Arctic sea ice loss or the small increase in Southern Ocean sea ice has stimulated interest in the physical basis of the model representation of sea ice and ocean processes in the polar regions.
This project will focus on the atmosphere to sea ice to ocean momentum transfer in the Arctic and Southern Oceans. The model of air-sea ice and sea ice-ocean drag forces will be examined and modified to account for form drag and stability using theory and observations. The representation of these drag laws will be explored in climate sea ice models, coupled sea ice-ocean models, and atmosphere-sea ice-ocean models. The simulations will be compared to observations and analysed for their implications.
The successful applicant will have aptitude for, and previous experience of, numerical modelling of physical environmental systems and will join a research team investigating related aspects of the polar oceans.

Contact
Prof. Daniel Feltham
phone: +44 (0)118 378 5094
email: d.l.feltham @reading.ac.uk

https://www.reading.ac.uk/about/jobs...91XsD&LANG=USA

[rmojtaba]

Damage monitoring using vibroacoustic analysis
KU Leuven, Belgium
Apply no later than: October 11, 2015

Project
Complex mechanical systems, such as aircraft, surfaceship, submarines, wind turbines and power plants often have widely varying usage patterns. Due to their cost and importance, their usage is generally reported by measuring quantities such as flight hours for aircraft, years for bridges and roads and number of starts for diesel engines. As faults and anomalies are experienced over time, premature replacements of parts and periodic maintenance become more frequent to assure safety of the most heavily used structures. A solution to this problem is the online condition monitoring and failure diagnosis/prognosis by analyzing the vibroacoustic signature of the complex mechanical structure which contains pivotal information about the state of the machinery and its critical structural components.
The PhD research will focus on the development and application of methodologies in order to perform damage identification and monitoring in mechanical systems. The main objectives will be the development of novel and effective methods and techniques for feature extraction, feature selection and feature quality assessment in order to estimate online the degradation of the mechanical structure under steady and variable operating conditions.The uncertainty propagation in the degradation process will be investigated ina probabilistic framework. Different type of sensors will be used and as trategy allowing the identification of the best positions and the number of sensors to be mounted will be developed. The performance and the effectiveness of the damage diagnostic techniques will be evaluated, demonstrated and validated through numerical simulation and experimental studies.

Profile
We are looking for a highly motivated, enthusiastic,communicative and eager to learn researcher with a Master of Science in Engineering(preferably in Mechanical or Electrical Engineering). The candidate should have a strong background and interest in signal processing, measurements and particularly in vibroacoustic condition monitoring/fault detection/diagnosis in complex mechanical systems

You can apply for this job no later than October 11, 2015 via the online application tool


https://icts.kuleuven.be/apps/jobsit...391508?lang=en

[rmojtaba]

Fault prognostics in rotating machinery
KU Leuven, Belgium
Deadline: 11 Oct 2015

Project
The PhD research will focus on the development and application of methodologies in order to perform prognostics and estimation of the Remaining Useful Life (RUL) in complex electromechanical systems. The main objectives will be the development of novel and effective methods and techniques for feature extraction, feature selection and feature quality assessment in order to estimate online the fault degradation and the RUL in rotating machinery under steady and variable operating conditions (variable speed & load). The uncertainty propagation in the degradation process will be investigated in a probabilistic framework. The performance and the effectiveness of the prognostic techniques will be evaluated, demonstrated and validated through numerical simulation, experimental studies and well established signal databases.

Profile
We are looking for a highly motivated, enthusiastic,communicative and eager to learn researcher with a Master of Science in Engineering(preferably in Mechanical or Electrical Engineering). The candidate should have a strong background and interest in signal processing, measurements and particularly in vibroacoustic condition monitoring/fault detection/diagnosis/prognostics in complex electromechanical systems.

You can apply for this job no later than October 11, 2015 via the online application tool

https://icts.kuleuven.be/apps/jobsit...tures/53390565

[rmojtaba]

Blind/Semi-blind Source Separation in complex rotating/reciprocating machinery
KU Leuven, Belgium
Deadline: 11 Oct 2015

Project
The PhD research will focus on the development and application of methodologies in order to address the Blind Source Separation problem in the context of rotating machinery. The first objective will be the extension of the framework of Blind Source Separation in order to cover mechanical applications working under non-stable (fluctuating), variable or non-stationary operating conditions. The second objective will be thedevelopment of semi-blinded or guided separation techniques which will be based on some level of informedness. Both objectives focus to the health monitoring of complex rotating/reciprocating machinery. The performance and the effectiveness of the techniques will be evaluated, demonstrated and validated through numerical simulation, experimental studies and well established signal databases.

Profile
We are looking for a highly motivated, enthusiastic,communicative and eager to learn researcher with a Master of Science in Engineering (preferably in Mechanical or Electrical Engineering). The candidate should have a strong background and interest in signal processing, blind source separation, measurements and vibroacoustic condition monitoring of complex rotating/reciprocating machinery.

You can apply for this job no later than October 11, 2015 via the online application tool

https://icts.kuleuven.be/apps/jobsite/vacatures/53390619

[8226009]

Dear friends,

There is a fully funded PhD position available at Syracuse University, NY, USA in the fields of Rigid Body State Estimation, Attitude and Pose Control, Orbital Mechanics or Geometric Mechanics. A master graduate or soon to be graduated master student in Aerospace/Mechanical Engineering (preferably from Top 5 Universities in Iran) interested in doing research on areas mentioned above are encouraged to contact me. Such a candidate is expected to join Syracuse U as soon as possible. You can reach out to me via email at mi(at)nmsu(dot)edu.

Regards,
Maziar

[rmojtaba]

PhD Studentship: Multi-phase flow simulation of boiling water reactors
Imperial College London, UK
Deadline: Saturday, August 01, 2015

The project’s specific work will focus on the development of advanced modelling methods for simulating multi-phase flows, this will include: 1) Developing the next generation dynamic core for multiphase flow with structural interaction and boiling capabilities. 2) Developing advanced error metrics and adaptive unstructured mesh resolution methods for efficient/accurate solutions with quantified measures of error.3) Integrating the technologies with parallel solvers for use on a range of HCP facilities. 4) Applying the modelling techniques to the simulations of ABWRs and other reactor designs.

This is a fully funded 4 year project under the nuclear CDT programme at Imperial College, starting in October 2015. For full details see: http://www.imperial.ac.uk/nuclear-cdt/

Please contact Dr Andrew Buchan andrew.buchan@imperial.ac.uk for more information regarding the position.

Interested applicants are advised to apply as early as possible.

[rmojtaba]

PhD Studentship: High-fidelity simulations of high-pressure turbines
University of Melbourne, Australia
Deadline: Monday, August 31, 2015

In the current project, we will conduct high-fidelity simulations of HPT flows using a well-established high-performance DNS/LES code. The data resulting from the massively parallel simulations will be used in order to shed light on the detailed loss and heat transfer mechanisms and to assess current modelling strategies, and if possible, improve those.

You should have a first-class Honours degree or international equivalent in Aeronautical Engineering, Mechanical Engineering, or a related subject. Prior experience with conducting large-scale parallel simulations and with turbomachinery flows is desirable but not required.

If you are interested in the above project and wish to discuss any details of the project informally, please contact:
Prof Richard Sandberg
Department of Mechanical Engineering
University of Melbourne
email: richard.sandberg@unimelb.edu.au

[rmojtaba]

PhD Studentship: High-accuracy simulations of high Re and complex-geometry flows
University of Melbourne, Australia
Deadline: Monday, August 31, 2015

The aim of this project is to continue developing a RANS/LES framework that relies on applying gene-expression programming algorithms to high-fidelity experimental or numerical data. Preliminary work on simple canonical flow configurations has shown good performance. However, it is now of key importance to adapt and refine the approach for considerably more complex flow configurations and for higher Reynolds numbers

You should have a first-class Honours degree or international equivalent in Aeronautical Engineering, Mechanical Engineering, or a related subject

If you are interested in the above project and wish to discuss any details of the project informally, please contact
Prof Richard Sandberg
Department of Mechanical Engineering
University of Melbourne
email: richard.sandberg@unimelb.edu.au