Accession Number : ADA254108


Title :   One Type of Automatically Adjusted Difference Scheme with Artificial Viscosity to Calculate Ablated Exterior Shapes


Corporate Author : FOREIGN AEROSPACE SCIENCE AND TECHNOLOGY CENTER WRIGHT-PATTERSON AFB OH


Personal Author(s) : Yang, Maozhao


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a254108.pdf


Report Date : 17 Jan 1992


Pagination or Media Count : 14


Abstract : In the calculation of the exterior form of ablated reentry nose tips, through automatic wave filter processing with reference to the shape of the object, a type of explicit difference scheme with added artificial viscosity quantities was created. This type of scheme reaches first order accuracy in areas where shape change is wavy and second order accuracy in areas where it is smooth. Tests with numerical values clearly show that this type of method is effective in guaranteeing the accuracy of exterior shape calculations, enlarging time increments and saving computer time.


Descriptors :   *NOSE TIPS , *AERODYNAMICS , TEST AND EVALUATION , COMPUTERS , QUANTITY , PROCESSING , SHAPE , ACCURACY , TIME , NOSES , HEATING , TRANSLATIONS , VALUE , FILTERS , VISCOSITY , AUTOMATIC , SAVINGS


Subject Categories : Military Aircraft Operations


Distribution Statement : APPROVED FOR PUBLIC RELEASE