Heated soil drying

supvato · May 14, 2018, 16:37

Hello, everyone.

I would like to run a 2D simulation of soil drying with a heat source (see sketch).

The initial soil moisture content is relatively low (~20% m/m) and the air is at atmospheric conditions. I would set a constant temperature and relative humidity to make things easier, that is, the evaporated water from the soil would not change the air conditions. I have the characteristics of the soil (e.g. conductivity, average grain size, etc.). I'm thinking of modeling the soil as a porous block with a particular amount of water.

I was wondering if this is a reasonable problem and if any of you have done something similar and have tips that could make things easier. Thanks in advance for any help.

Blue · May 21, 2018, 01:40

There are following options.
a) Treat soil as solid. If no or negligible humidity is released from soil.
b) If humidity is released, use DPM and replace the soil with a wall.
c) Treat soil as a porous material.

all the best.

May 14, 2018, 16:37	Heated soil drying	#1
supvato New Member Tencho Join Date: Dec 2014 Posts: 12 Rep Power: 12	Hello, everyone. I would like to run a 2D simulation of soil drying with a heat source (see sketch). The initial soil moisture content is relatively low (~20% m/m) and the air is at atmospheric conditions. I would set a constant temperature and relative humidity to make things easier, that is, the evaporated water from the soil would not change the air conditions. I have the characteristics of the soil (e.g. conductivity, average grain size, etc.). I'm thinking of modeling the soil as a porous block with a particular amount of water. I was wondering if this is a reasonable problem and if any of you have done something similar and have tips that could make things easier. Thanks in advance for any help.

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May 21, 2018, 01:40		#2
Blue Member Join Date: Jul 2012 Location: India Posts: 32 Rep Power: 14	There are following options. a) Treat soil as solid. If no or negligible humidity is released from soil. b) If humidity is released, use DPM and replace the soil with a wall. c) Treat soil as a porous material. all the best.