{"title":"不可压缩粘性流动问题的一般曲线坐标网格对流差分格式","authors":"Y. Matsumoto, H. Daiguji","doi":"10.1299/JSMEB1988.35.4_559","DOIUrl":null,"url":null,"abstract":"A numerical scheme analysing two-dimensional incompressible viscous flow using a general curvilinear co-ordinate grid is proposed. In this scheme, the unsteady Navier-Stokes equations are solved by a convective-difference scheme using a staggered square grid in transformed space and an interpolation formula considering TVD concept, and an elliptic equation of pressure is solved by the iteration scheme. The continuity condition in the scheme is identically satisfied, and the spurious errors are completely removed, in a manner similar to the MAC scheme. As numerical examples the square cavity, U-type duct and backward-facing step duct flows were calculated. The calculated results show that the scheme has a good accuracy as a second-order scheme and is stable for high Reynolds numbers flow.","PeriodicalId":421113,"journal":{"name":"JSME international journal. Series 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Convective-Difference Scheme Using a General Curvilinear Coordinate Grid for Incompressible Viscous Flow Problems\",\"authors\":\"Y. Matsumoto, H. Daiguji\",\"doi\":\"10.1299/JSMEB1988.35.4_559\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A numerical scheme analysing two-dimensional incompressible viscous flow using a general curvilinear co-ordinate grid is proposed. In this scheme, the unsteady Navier-Stokes equations are solved by a convective-difference scheme using a staggered square grid in transformed space and an interpolation formula considering TVD concept, and an elliptic equation of pressure is solved by the iteration scheme. The continuity condition in the scheme is identically satisfied, and the spurious errors are completely removed, in a manner similar to the MAC scheme. As numerical examples the square cavity, U-type duct and backward-facing step duct flows were calculated. The calculated results show that the scheme has a good accuracy as a second-order scheme and is stable for high Reynolds numbers flow.\",\"PeriodicalId\":421113,\"journal\":{\"name\":\"JSME international journal. Series 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-11-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JSME international journal. Series 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1299/JSMEB1988.35.4_559\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JSME international journal. Series 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1299/JSMEB1988.35.4_559","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Convective-Difference Scheme Using a General Curvilinear Coordinate Grid for Incompressible Viscous Flow Problems
A numerical scheme analysing two-dimensional incompressible viscous flow using a general curvilinear co-ordinate grid is proposed. In this scheme, the unsteady Navier-Stokes equations are solved by a convective-difference scheme using a staggered square grid in transformed space and an interpolation formula considering TVD concept, and an elliptic equation of pressure is solved by the iteration scheme. The continuity condition in the scheme is identically satisfied, and the spurious errors are completely removed, in a manner similar to the MAC scheme. As numerical examples the square cavity, U-type duct and backward-facing step duct flows were calculated. The calculated results show that the scheme has a good accuracy as a second-order scheme and is stable for high Reynolds numbers flow.