CFD数值模拟技术未来发展趋势分析

More Thoughts on the Future Trends of CFD Simulation

Posted on July 22, 2015 by Gilles Eggenspieler   Source：Ansys

    A few days back, I wrote about the future trends of CFD. But this was from an engineer perspective. When my friends or family ask me what I do, I always relate CFD and simulation to everyday product. How CFD is used to design a fan, a milk warmer, etc.

    In the future, people will be using CFD, actually running simulation live…without even knowing it. Here is one example of my vision of the future of CFD used by people in their everyday life…

    Imagine a day in the future. Mr and Mrs Smith are driving from Santa Barbara to Monterrey, CA. It is July 5th, a splendid summer day. Their baby is buckled into the car seat, in the rear right seat. The routing information is entered in the on-board computer. Today, they will drive Highway 1. It is 1:43 PM when they leave. As Mr. Smith gets on the road, Mrs Smith turns on temperature control and sets it to 70F. At this point millions of CFD simulation come to live. Here is how.

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    A sensor detects that the sky is cloud-less. The on-board computer, using the route, date and time of day computes the amount of heat coming, each minute, from the sun for the entire drive.

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    Another sensor detects who is the car: 2 adults, one baby. The on-board computers compute the amount of heat produced by the passengers.

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    Using all these information the on-board computer accesses millions of CFD results. Not raw data of course, but information stored in Reduced Order Forms (ROM). These CFD simulations, millions of them, were performed during the car design phase and have one goal: ensuring that each and every scenario is covered so that the temperature control system can reliably deliver the comfortable temperature drivers expect during the entire drive.

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    Using the heat sources information it collected, it can compute exactly how to setup the temperature control to reach a uniform 70F temperature in the car. The on-board computer computes this in real time and will adjust the temperature control setting as the drive progresses.

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    The on-board computer knows how to set up each vent air flow and temperature. In just a few minutes, everyone in the car is enjoying a nice afternoon drive.

    Do you have other example to share?