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 ______      ___     __   __     ___     __   __  
|      \\   / _ \\   \ \\/ //   / _ \\   \ \\/ // 
|  --  //  | / \ ||   \   //   | / \ ||   \   //  
|  --  \\  | \_/ ||   / . \\   | \_/ ||   / . \\  
|______//   \___//   /_//\_\\   \___//   /_//\_\\ 
`------`    `---`    `-`  --`   `---`    `-`  --`

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Text this: Wall effect on settling of cylindrical particles