Supported by the National Basic Research Program of China(2010CB630904);the National Natural Science Foundation of China(21276004,20990224);the National Natural Science Fund for Distinguished Young Scholars(21025627);the National High Technology Research and Development Program of China(2012AA061503)
In our previous work, a low-shear stirred bioreactor was explored. With a pitched blade turbine impeller downflow(PBTD) used, the shear stress generated is high compared with that in some low shear axial flow impeller...