Interrelations among mixing time, power number and discharge flow rate number in baffled mixing vessels.

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Reynolds-number effects and anisotropy in transverse-jet mixing

Experiments are described which measured concentration fields in liquid-phase strong transverse jets over the Reynolds-number range 1.0× 10 Rej 20× 10. Laserinduced-fluorescence measurements were made of the jet-fluid-concentration fields at a jet-to-freestream velocity ratio of Vr =10. The concentration-field data for far-field (x/dj =50) slices of the jet show that turbulent mixing in the tra...

متن کامل

Statistics and geometry in high-Schmidt number scalar mixing

The mixing of substances is present in various turbulent systems. Examples arise in reacting flows and combustion, mixing of salt and plankton in oceans and of chemical pollutants in the stratosphere [1]. The physics of scalar mixing depends strongly on the ratio of the kinematic viscosity ν of the fluid to the diffusivity κ of the scalar. It is given by the Schmidt number Sc = ν/κ. For the fol...

متن کامل

The effect of vortex pairing and Prandtl number on mixing in moderate Reynolds number stratified flows

Mixing resulting from Kelvin-Helmholtz instability is studied by direct numerical simulations for an intermediate Reynolds number in stratified flows where vortex pairing occurs. We investigate how the interaction of several billows changes the mixing properties. Simulations in a long domain show that only considering the interaction of two billows overestimates the amount of mixing and mixing ...

متن کامل

Scalar dissipation fronts in high-Schmidt number mixing.

Jörg Schumacher Fachbereich Physik, Philipps-Universität Marburg, D-35032 Marburg, Germany Herwig Zilken Visualization Laboratory, Zentralinstitut für angewandte Mathematik, Forschungszentrum Jülich, D-52425 Jülich, Germany Bruno Eckhardt Fachbereich Physik, Philipps-Universität Marburg, D-35032 Marburg, Germany Katepalli R. Sreenivasan International Centre for Theoretical Physics, 34014 Triest...

متن کامل

Prandtl number effects on mixing in Kelvin-Helmholtz billows

We use DNS to study the effect of Prandtl number on mixing in weakly density stratified Kelvin-Helmholtz (KH) billows at low to moderate Reynolds numbers. The time evolution of the density field of the flow and the mixing are significantly influenced by the Prandtl number. By increasing the Prandtl number, the final amount of mixing increases for Reynolds that are too low to sustain three-dimen...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

سال: 1985

ISSN: 0021-9592,1881-1299

DOI: 10.1252/jcej.18.47