Hi~ i have some question abourt relaxation method

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kobl1201
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Joined: Tue Nov 04, 2014 8:29 pm
Location: Kongju National Universty

Hi~ i have some question abourt relaxation method

#1 Unread post by kobl1201 »

Hello~

I applied relaxation method like this equation

T = T + dt/k(H-T)

Here, T is calculated by model, dt is time-step , k is nudging time scale, and H is external data.

If i set k = 30 day * 86400 sec, dt = 30sec, H is applied each time-step, or it is applied every 30 days.

Please Help me

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kate
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Re: Hi~ i have some question abourt relaxation method

#2 Unread post by kate »

It should be applied every timestep.

kobl1201
Posts: 60
Joined: Tue Nov 04, 2014 8:29 pm
Location: Kongju National Universty

Re: Hi~ i have some question abourt relaxation method

#3 Unread post by kobl1201 »

Thanks Kate.


At that time, If I have that the external data is interval of 1 day, H should be updated every 1 day or every 30 days??

Have a good time

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kate
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Re: Hi~ i have some question abourt relaxation method

#4 Unread post by kate »

Might as well update every day if you have it.

kobl1201
Posts: 60
Joined: Tue Nov 04, 2014 8:29 pm
Location: Kongju National Universty

Re: Hi~ i have some question abourt relaxation method

#5 Unread post by kobl1201 »

Thank you Kate.

I understand the nudginf time scale.

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