Automation is generally carried out

in order to reduce the turnaround time of project. Any optimization techniques

such as Design of Experiment (DOE) need multiple numbers of simulations to be

executed and requires huge amount of pre-processing time along the generation

of simulation model. DOE is the systematic approach to engineering problem

solving to ensure the valid output and is carried out with minimum time and

simulation experiment. DOE

determine the relation between factors affecting a process and the output of

that process.

In this present work, study of

various duct models are carried out to find out the various design parameter

affecting response parameter during optimization process. Computational fluid

dynamics (CFD) provides qualitative and quantitative prediction of the fluid

flow. CFD analysis is done to understand the physical phenomenon of the flow

domain and investigate the variable affecting response parameter which is

related to flow. For limited number of objectives generally trial and error

process is adopted. Trial and error process tend to increase the complexity in

problem and also time consuming. Analyst

can use statistical DOE technique to reduce number of simulation experiments to

minimize the project turnaround time. So objective is to automate CFD workflow

for the optimization with the use of FluidNexus. FluidNexus generates the

simulation model for each run by using single abstract model and Computer Aided

Drafting (CAD) geometry. Post processing is done using AcuReport Tool and by

analyzing these reports the optimum geometry is decided. This whole process is

integrated to automate the optimization.

2 level DOE is used in optimization

of pipe while 3 level DOE is used in optimization of air inlet duct. For

straight pipe, for selected design of experiment model having length XX mm and diameter XX

mm (i.e. Model 3) results shows XX Pa pressure

drop, which lowest among the various run in design of experiment. Similarly for

air inlet duct, from selected design of experiment model having elliptical

cross section (a=b), curvature of radius XX mm

and no taper cross section along the bend with maximum diameter of pipe XX mm

gives pressure drop is XX Pa which is optimal

design among proposed design of experiment.