1990-02-01

Interior Flow Visualization of a Small Pick-Up Truck and A/C Feeling Estimate 900082

Two kinds of visual tests to recognize the interior air flow of a small pick-up truck are made.One way is the tuft stick grid, and another is numerical simulational analysis. The former is done with arranged tuft. The latter is done by using the super computer.The results of both are very simillar. The tuft stick grid is recognized as a simple, easy, and actual way to see the outline of the vehicle interior flow. Numerical analysis is done as an effective way to see more detail, and to more easily evaluate changes.Another case is calculated in which a doll model is assumed for the passengers. The results are used to predict the air conditioning (A/C) feeling by using the A/C feeling prediction system.The predicted results and the actual A/C feeling test results are similar to each other. As a result, it is said that the numerical simulational analysis is effective in predicting A/C feeling.

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