{"id":171079,"date":"2023-06-05T07:05:38","date_gmt":"2023-06-05T07:05:38","guid":{"rendered":"\/knowledge\/forums\/topic\/how-to-improve-the-mesh-and-prevent-negative-volumes-near-the-leading-edge-of-radial-pump-blades\/"},"modified":"2023-07-31T12:30:00","modified_gmt":"2023-07-31T12:30:00","slug":"how-to-improve-the-mesh-and-prevent-negative-volumes-near-the-leading-edge-of-radial-pump-blades","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-improve-the-mesh-and-prevent-negative-volumes-near-the-leading-edge-of-radial-pump-blades\/","title":{"rendered":"How to improve the mesh and prevent negative volumes near the leading edge of radial pump blades"},"content":{"rendered":"<p>For radial pumps, occasionally TurboGrid is not able to properly locate the leading edge.  It needs to define this location for the mesh templates to be aligned properly with the geometry.  When this occurs, poor mesh quality or negative volumes result.  The Blade Set CCL in TurboGrid can be modified to remedy this.  To do this, right click on Blade Set and select Edit in Command Editor. The line of CCL to be modified is:       Blade Edge Detection Space = Auto  For all blades, it should be changed to:       Blade Edge Detection Space = Cartesian  Click Process.<\/p>\n","protected":false},"template":"","class_list":["post-171079","topic","type-topic","status-publish","hentry","topic-tag-18-2","topic-tag-cfx-turbogrid","topic-tag-fluid-dynamics","topic-tag-general"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"For radial pumps, occasionally TurboGrid is not able to properly locate the leading edge. It needs to define this location for the mesh templates to be aligned properly with the geometry. When this occurs, poor mesh quality or negative volumes result. The Blade Set CCL in TurboGrid can be modified to remedy this. To do\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-improve-the-mesh-and-prevent-negative-volumes-near-the-leading-edge-of-radial-pump-blades\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"How to improve the mesh and prevent negative volumes near the leading edge of radial pump blades | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"For radial pumps, occasionally TurboGrid is not able to properly locate the leading edge. It needs to define this location for the mesh templates to be aligned properly with the geometry. When this occurs, poor mesh quality or negative volumes result. The Blade Set CCL in TurboGrid can be modified to remedy this. To do\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-improve-the-mesh-and-prevent-negative-volumes-near-the-leading-edge-of-radial-pump-blades\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-06-05T07:05:38+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:30:00+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"How to improve the mesh and prevent negative volumes near the leading edge of radial pump blades | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"For radial pumps, occasionally TurboGrid is not able to properly locate the leading edge. It needs to define this location for the mesh templates to be aligned properly with the geometry. When this occurs, poor mesh quality or negative volumes result. The Blade Set CCL in TurboGrid can be modified to remedy this. 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