title: Fluid dynamics topics in bloodstain pattern analysis: comparative review and research opportunities.
abstract: This comparative review highlights the relationships between the disciplines of bloodstain pattern analysis (BPA) in forensics and that of fluid dynamics (FD) in the physical sciences. In both the BPA and FD communities, scientists study the motion and phase change of a liquid in contact with air, or with other liquids or solids. Five aspects of BPA related to FD are discussed: the physical forces driving the motion of blood as a fluid; the generation of the drops; their flight in the air; their impact on solid or liquid surfaces; and the production of stains. For each of these topics, the relevant literature from the BPA community and from the FD community is reviewed. Comments are provided on opportunities for joint BPA and FD research, and on the development of novel FD-based tools and methods for BPA. Also, the use of dimensionless numbers is proposed to inform BPA analyses.
authors.affiliation: Department of Mechanical Engineering, Iowa State University of Science and Technology, Ames, IA 50011, USA. Attinger@iastate.edu
authors.forename: Daniel
authors.initials: D
authors.lastname: Attinger
authors.forename: Craig
authors.initials: C
authors.lastname: Moore
authors.forename: Adam
authors.initials: A
authors.lastname: Donaldson
authors.forename: Arian
authors.initials: A
authors.lastname: Jafari
authors.forename: Howard A
authors.initials: HA
authors.lastname: Stone
mesh_terms: D055592:Biophysical Phenomena; D001801:Blood Stains; D001809:Blood Viscosity; D004548:Elasticity; D006112:Gravitation; D006400:Hematocrit; D006801:Humans; D057446:Hydrodynamics; D010539:Permeability; D016062:Porosity; D013500:Surface Tension
keywords: Bloodstain pattern analysis; Dimensionless number; Drop generation; Impact; Review; Stain; Trajectory