Turbulent Flow Measurements of Microalgal Cell Suspension in Bubble Column Bioreactors

Autor:	Eiichi Kojima, Bin Lin
Rok vydání:	2004
Předmět:	Materials science Turbulence General Chemical Engineering Airlift Spectral density General Chemistry Mechanics Thermal diffusivity Exponential function Physics::Fluid Dynamics Correlation function (statistical mechanics) Anemometer Turbulence kinetic energy Electronic engineering
Zdroj:	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 37:999-1004
ISSN:	1881-1299 0021-9592
DOI:	10.1252/jcej.37.999
Popis:	During cultivation of a microalga Chlorella in a bubble column and a split-cylinder airlift, turbulence characteristics were measured using a constant temperature anemometer equipped with a hot film sensor. From the digitized output signal of the anemometer, such parameters as the mean liquid phase velocity, turbulence intensity, integral scale, and turbulent diffusivity were calculated. The non-dimensional power spectrum distributions of liquid velocity fluctuations fit well with the equation which assumes that the correlation function of turbulent velocity fluctuations is exponential.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::96c7b2070f56504e9c35f953124f25ba https://doi.org/10.1252/jcej.37.999 Zobrazit plný text záznamu