CFD Analysis in Heat transfer & Combustion

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Tasks to be undertaken:


The overall aim of this assignment is to demonstrate that you have a clear understanding of Thermal Analysis and Computational Fluid Dynamics (CFD) Methods, and the role these techniques play in development of heat and mass transfer systems, the benefits associated with their use and the problems and limitations encountered when using these methods.

The above aim is to be achieved through a written report, not exceeding 3000 words.


In a heat recovery system, Cold water enters the counter-flow  helical heat exchanger at Tc,in oC at a rate of mA  kg/s, where it is used to recover heat from engine oil  that enters the heat exchanger at Th,in oC at a rate of mB  kg/s. For the bench  mark case use a pitch distance of 100mm for the helical coil.

Each student will generate 2 case studies – A bench mark case which corresponds to the boundary conditions in the table below – ( Use the row that matches the last ID of your student P No). And another case where you optimise the design and operation  of the heat exchanger. The objective is to optimise the  rate of heat transfer, within the constraints of  1m length and a fixed outer shell diameter of 250mm. Flow rates must be realistic

Figure 1: Schematic of Heat exchanger

Each student will use the following details for a base case  and then optimise the heat transfer


    Last     Digit

Student ID

of Tc,in oC Th,in oC mA kg/s mB kg/s  
0-1   5 120 4 8
2-3   7 110 4 9
4-5   10 100 4 10
6-7   12 90 4 11
8-9   15 80 4 12




Last Digit of Student ID D(mm)
0-1 55
2-3 60
4-5 63.5
6-7 65
8-9 70




Deliverables to be submitted for assessment:  Written report


  How the work will be marked:





Aims/Objectives should be stated clearly and concisely

Report should have clearly defined sections such as: Introduction, Review, Methodology,  Results/ Discussion, Conclusions, References, etc.


Role of CFD and Computational Heat Transfer methods in modelling and design of thermo-fluid systems


The numerical methods used for convective heat transfer, combustion and fluid flow (CFD) and the latest development in these fields the basic theoretical principles underpinning modern computational Heat Transfer and CFD.

Role of CFD and Computational Heat Transfer methods in modelling and design of thermo-fluid systems


Mesh convergence and  boundary conditions

Calculations to make decision  and check results

  Results and Discussion

Discussing results of your case study: briefly interpreting and discussing the results and comparing it to the bench mark.

General visualisation of the flow and temperature field may include:

Contours of velocity, temperature, pressure and any other relevant parameter.

Vertical and axial profiles for velocity and temperature at specific location of interest

Horizontal as well as cross-sectional images of velocity profiles coloured with other variables.

You should demonstrate understanding of theory of Navier-Stokes equation of motion and the various turbulence modelling used in CFD and in solving the 3D convective heat transfer equation (steady state only).


Discuss the benefits that can be gained from using modern CFD and Computational Heat Transfer methods


Discuss the limitations and problems associated with the use of CFD and Computational Heat Transfer methods.


Conclusion 5

At least 7 academic references


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