{"title":"径向流场中气体压力的分布","authors":"Sun Peide","doi":"10.1016/0167-9031(91)90861-6","DOIUrl":null,"url":null,"abstract":"<div><p>It is still a difficult problem to find the analytical solutions for the gas flow equation, the nonlinear partial differential equation of the radial flow field in the coal seam. The approximate analytical solutions, with variable substitution and proper simplification, that is, the distribution expressions of gas pressure in a radial flow field are developed. The analytical formulas for gas drainage in the coal seam are presented. The numerical calculation with computers demonstrates that the new analytical formulas are accurate and easy to use for the design of a gas drainage system.</p></div>","PeriodicalId":100929,"journal":{"name":"Mining Science and Technology","volume":"13 3","pages":"Pages 409-415"},"PeriodicalIF":0.0000,"publicationDate":"1991-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-9031(91)90861-6","citationCount":"3","resultStr":"{\"title\":\"Distribution of gas pressure in a radial flow field\",\"authors\":\"Sun Peide\",\"doi\":\"10.1016/0167-9031(91)90861-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>It is still a difficult problem to find the analytical solutions for the gas flow equation, the nonlinear partial differential equation of the radial flow field in the coal seam. The approximate analytical solutions, with variable substitution and proper simplification, that is, the distribution expressions of gas pressure in a radial flow field are developed. The analytical formulas for gas drainage in the coal seam are presented. The numerical calculation with computers demonstrates that the new analytical formulas are accurate and easy to use for the design of a gas drainage system.</p></div>\",\"PeriodicalId\":100929,\"journal\":{\"name\":\"Mining Science and Technology\",\"volume\":\"13 3\",\"pages\":\"Pages 409-415\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1991-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0167-9031(91)90861-6\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Mining Science and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0167903191908616\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mining Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0167903191908616","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Distribution of gas pressure in a radial flow field
It is still a difficult problem to find the analytical solutions for the gas flow equation, the nonlinear partial differential equation of the radial flow field in the coal seam. The approximate analytical solutions, with variable substitution and proper simplification, that is, the distribution expressions of gas pressure in a radial flow field are developed. The analytical formulas for gas drainage in the coal seam are presented. The numerical calculation with computers demonstrates that the new analytical formulas are accurate and easy to use for the design of a gas drainage system.
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