Microalgae Growth Time Steps

Fidho.im · February 18, 2019, 05:38

Hello everyone,

Currently, I'm trying to simulate microalgae growth within photobioreactor along with its fluid dynamics. The time needed for microalgae cultivation is 10 days, how do I determine time steps for my simulation? Can I really put 10 days as time steps? I really appreciate it if someone has recommendations or suggestions for this problem.

Thanks in advance!

MKuhn · February 18, 2019, 07:00

The time step depends on the activity of your flow field. Start with a steady state solution where the mircoalgae will not growth. Than switch to transient and growing, start mayby with 1 min time step. If the solution will converge within 20 iterations, than increase the time step, if not you have to decrease the time step.

philani · June 21, 2022, 06:10

Hi,

please help me I am growing the microalgae Microchlopsis giditana in the lab. The algae color is yellow and I am expecting green colour. What parameter can cause a microalgae to turn yellow. what is it that I need to change maybe.

February 18, 2019, 05:38	Microalgae Growth Time Steps	#1
Fidho.im New Member Join Date: Feb 2019 Posts: 5 Rep Power: 8	Hello everyone, Currently, I'm trying to simulate microalgae growth within photobioreactor along with its fluid dynamics. The time needed for microalgae cultivation is 10 days, how do I determine time steps for my simulation? Can I really put 10 days as time steps? I really appreciate it if someone has recommendations or suggestions for this problem. Thanks in advance!

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February 18, 2019, 07:00		#2
MKuhn Senior Member Moritz Kuhn Join Date: Apr 2010 Location: Germany, Dresden Posts: 245 Rep Power: 18	The time step depends on the activity of your flow field. Start with a steady state solution where the mircoalgae will not growth. Than switch to transient and growing, start mayby with 1 min time step. If the solution will converge within 20 iterations, than increase the time step, if not you have to decrease the time step.

June 21, 2022, 06:10		#3
philani New Member philani Join Date: Jun 2022 Posts: 1 Rep Power: 0	Hi, please help me I am growing the microalgae Microchlopsis giditana in the lab. The algae color is yellow and I am expecting green colour. What parameter can cause a microalgae to turn yellow. what is it that I need to change maybe.