Modeling of Bio-Fluids Flow with Complex Geometry Using Immersed Boundary Method

Details

• Personal Author:
  Celik I ; Mao S
• Description:
  Fluid dynamics problems in the area of bio-fluids involve complex geometries and moving boundaries in addition to strong transients. The applications of CFD to such problems traditionally employ boundary fitted coordinates, which require generation of complicated computational grids. The alternative approach utilizing Cartesian coordinates with embedded virtual force method (immersed boundary method) avoids the problem of expensive and time consuming boundary fitted grid. The simple orthogonal grids directly benefit numerical accuracy and computational efficiency. An immediate application of immersed boundary method (IB) is to modify in-house CFD DREAM code for bio-engineering applications using domain decomposition methodology. Several benchmarks are tested and numerical results for gas-droplet two-phase flow are shown to examine the transport and dispersion of germ-laden droplets in a room. This modeling effort provides valuable information for ventilation control strategies to improve airflow patterns to reduce indoor airborne infection risk. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Movements Communicable Diseases Occupational Health Safety Ventilation
• Keywords:
  Aerosol Particles Air Flow Bioaerosols Fluids Infectious Diseases Models
• Publisher:
  American Physical Society (APS)
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:20060591
• Citation:
  60th Annual Meeting of the Division of Fluid Dynamics, November 18-20, 2007, Salt Lake City, Utah. College Park, MD: American Physical Society (APS), 2007 Nov; :JU.7
• Federal Fiscal Year:
  2008
• Performing Organization:
  West Virginia University
• Peer Reviewed:
  False
• Start Date:
  20060801
• Source Full Name:
  60th Annual Meeting of the Division of Fluid Dynamics, November 18-20, 2007, Salt Lake City, Utah
• End Date:
  20100831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1d86be1f9ad7c869b3e66a7df11b8d9c41a3c643d6d462eb46b26148dd2da8f2df64bbf7c88c2c51b224b1dfefb63579d3f06878d393b989b1e4fc089f81f567
• Download URL:
  https://stacks.cdc.gov/view/cdc/224452/cdc_224452_DS1.pdf
• File Type:
  [PDF - 66.66 KB ]