Global Trends of Computational Fluid Dynamics to Resolve Real World Problems in the Contemporary Era

Abstract

Background: Computational fluid dynamics (CFD) came into existence with enormous number of good marks, thereby replacing the traditional methods used to simulate the problems related to the flow of fluid. First CFD utilitarian was introduced to the world in 1957, which was developed by a team at Los Alamos National Lab. For the need of tremendous performance and to meet the expected result with an ease for modern process conditions, engineers are getting more prone towards simulation softwares rather than traditional methods. Hence, in the current scenario with the advancement of computer technologies “CFD is recognized as an excellent tool for engineers to resolve real world problems.” Introduction: CFD is defined as a branch of fluid dynamics which involves the use of numerical analysis and data structure to solve complications related to the flow of fluids (gasses or liquids). CFD is basically based on three major principles they are Mass conservation, Newton's second law and Energy conservation. CFD at an alarming rate has extended to a number of applications in every field to a large extent such as in aerospace, sports, food industry, engineering, hydraulics, HVAC (Heating, Ventilating and Air conditioning), automotive, environmental, power generation, biomedical, pharmaceutical and many more. Hence, numbers of softwares like ANSYS, Open Foam, SimScale, Gerris, Auto desk simulation, Code_Saturne etc, are beneficial in order to execute the operations and to find the solution of real world problems within fraction of seconds. Methods: CFD analysis involves three major steps pre processing, solution and post processing. Pre processing deals with defining of model goal, identification of domain, designing and creating the grid; solution involves set up of the numerical model, computing and monitoring the solution. Whereas, post processing includes result of the examination and revision of the model. Conclusion: Computational fluid dynamics is relevant in each and every aspect of problems related to the fluid flow, never mind existing in human body or in the rest of the world. In the contemporary era there are enormous numbers of simulation based softwares, which provide excellence in the result with just one click, thereby resolving the problems within microseconds. Hence, we cannot imagine our present and upcoming future without CFD, which ultimately made the execution of work easier, leaving behind non-complicating scenario. Lastly we can conclude that “CFD is a faster, smarter and lighter way in designing process.”

Large Eddy Simulation of the Flow Past a Soccer Ball

“…ere has been a significant increase in the research studies utilizing Computational Fluid Dynamics (CFD) techniques in engineering design, optimization, structure analysis, and many other applications [1]. Several general-purpose CFD codes, such as OpenFoam, Fluent, CFX, X-FLOW, COMSOL, STAR-CCM+, etc., are used to perform such studies.…”

“…Because of high computational power requirements and possibly a previous lack of demand for a highly detailed understanding, relatively few research studies have attempted to simulate the flow around a different soccer ball. Carré et al [1] also analyzed the effect of the incoming flow velocity and spin conditions on the aerodynamic properties of a typical soccer ball using wind tunnel testing and CFD. Barber et al [21] performed a CFD assessment of the ball's aerodynamic behavior based on seam width and sharpness.…”