title: Computational fluid dynamics modeling of momentum transport in rotating wall perfused bioreactor for cartilage tissue engineering.
abstract: In this study, computational fluid dynamics (CFD) analysis of a rotating-wall perfused-vessel (RWPV) bioreactor is performed to characterize the complex hydrodynamic environment for the simulation of cartilage development in RWPV bioreactor in the presence of tissue-engineered cartilage constructs, i.e., cell-chitosan scaffolds. Shear stress exerted on chitosan scaffolds in bioreactor was calculated for different rotational velocities in the range of 33-38 rpm. According to the calculations, the lateral and lower surfaces were exposed to 0.07926-0.11069 dyne/cm(2) and 0.05974-0.08345 dyne/cm(2), respectively, while upper surfaces of constructs were exposed to 0.09196-0.12847 dyne/cm(2). Results validate adequate hydrodynamic environment for scaffolds in RWPV bioreactor for cartilage tissue development which concludes the suitability of operational conditions of RWPV bioreactor.
authors.affiliation: Hacettepe University, Nuclear Engineering Department, 06800, Beytepe, Ankara, Turkey.
authors.forename: Mahmut N
authors.initials: MN
authors.lastname: Cinbiz
authors.forename: R Seda
authors.initials: RS
authors.lastname: Tığli
authors.forename: Işil Gerçek
authors.initials: IG
authors.lastname: Beşkardeş
authors.forename: Menemşe
authors.initials: M
authors.lastname: Gümüşderelioğlu
authors.forename: Uner
authors.initials: U
authors.lastname: Colak
mesh_terms: D000465:Algorithms; D000818:Animals; D019149:Bioreactors; D002356:Cartilage; D019902:Chondrocytes; D019295:Computational Biology / Q000379:methods*; D003198:Computer Simulation; D017076:Computer-Aided Design; D057446:Hydrodynamics; D051379:Mice; D015203:Reproducibility of Results; D023822:Tissue Engineering / Q000295:instrumentation* / Q000379:methods; D054457:Tissue Scaffolds