10.4.1_peseiGFS_025bugfixes+enhancementsdevrelease-10release-10.4.1scaling-bug
Last change
on this file since 92fab65 was
92fab65,
checked in by Ignacio Pisso <ip@…>, 5 years ago
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add SPDX-License-Identifier to all .f90 files
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-
Property mode set to
100644
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File size:
423 bytes
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Rev | Line | |
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[92fab65] | 1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
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| 2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
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[332fbbd] | 3 | |
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[e200b7a] | 4 | ! Function calculates dynamic viscosity of air (kg/m/s) as function of |
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| 5 | ! temperature (K) using Sutherland's formula |
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| 6 | |
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| 7 | real function viscosity(t) |
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| 8 | |
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| 9 | implicit none |
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| 10 | |
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| 11 | real :: t |
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| 12 | real,parameter :: c=120.,t_0=291.15,eta_0=1.827e-5 |
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| 13 | |
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| 14 | viscosity=eta_0*(t_0+c)/(t+c)*(t/t_0)**1.5 |
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| 15 | |
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| 16 | return |
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| 17 | |
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| 18 | end function viscosity |
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