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CFD


Computational Fluid Dynamics (CFD) as it named indicates is the branch of fluid mechanics where the flow problems are solved with the help of high power computers to arrive at the solution involving boundary layer and many more problems.

In C.F.D domain, typical work which we execute includes :

Conjugate heat transfer analysis

One of the main application of CFD is to understand the heat flow or dissipation in a complex 3D system where the mode of heat transfer can be Conduction, Convection and Radiation. In conjugate heat transfer analysis, due to buoyancy effect, the amount of heat due to convection to the surrounding air from bodies may change based on the temperature of ambient and density of air around it. These types of analysis can also involve Joule heating as heat source, constant/variable heat source and also solved in steady state or transient simulations.

But some of the problems can be solved using steady state assumptions and also flow may or may not be required. Simplifying the computation method is crucial as the run time and cost for HPC can be saved and also automation helps to cut down the modeling and pre-processing time much.

Aerodynamics

Aerodynamics deals with the interaction of air onto vehicle structure and determines the initial product shape for given power and energy requirement. Efficient design gets the better fuel mileage and also reduces the drag and determines the behavior of vehicle during maneuvering . Racing demands better aerodynamics and also there is a trade-off since there is an optimum drag determines the performance vs mileage requirements.

Conservation of mass (on control volume), Conservation of linear momentum, Conservation of energy are the basic fundamentals to solve for drag and arrive at the better design for underbody to create any pressure recovery zone.

When solving the flow under the car, we need to understand various resistances into picture. For a vehicle at constant speed, it is exposed to rolling resistance, gravitational resistance, acceleration resistance and the aerodynamic resistance.

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What We Do

XiRho strength lies in strong team work, excellent collaboration with clients on innovation, detailed Engineering knowledge on how product works. We as a team could potentially improve or streamline any CAE activities for client and help build best practices to solve some of the complex Engineering in designing and validating a product.