rotder_mod.f

32 lines · 1 definitions · on GitHub (7be4133)

Python version: rotder_mod.py, 20 lines, on the right (switch to Python above the code).

Variables on this page (4)

fracnuc, json, sqet, sqot

Purpose

ROTDER_MOD passes three quantities at each shell from the structure equations to the setup of rotational mixing. Shared by 2 routines. It replaces COMMON/ROTDER/ (MHP via Claude, 10/14/26), less its arrays SQOD and SQED, which COEFFT stored and no routine read; JSON comes from DIMENSIONS_MOD.

What its variables hold, who sets them, who reads them. All three are stored by COEFFT at each shell when LROT is set, and read by SETUPV for the circulation's coefficients.

SQOT(JSON): the opacity's $\partial\ln\kappa/\partial\ln T$ (QOT); SETUPV forms $\partial\ln\chi/\partial\ln T = 3 - \partial\ln\kappa/\partial\ln T$ and its radial derivative.
SQET(JSON): the energy generation's $\partial\ln\epsilon/\partial\ln T$ (QET).
FRACNUC(JSON): the share of the energy generation that is nuclear, $(\epsilon_\mathrm{tot} - \epsilon_\nu)/\epsilon_\mathrm{tot}$ from SESUM and SEG(6), SEG(7) (SCRTCH_MOD), or 0 when $\epsilon_\mathrm{tot} \le 0$.

Design

A blanket USE ROTDER_MOD in each routine.

Definitions

moduleROTDER_MOD

lines 19–32 · GitHub

Uses modules DIMENSIONS_MOD

Used by (2 units)

COEFFT, SETUPV

Change log

The changes since rp_1

Changed since rp_1. New file: COMMON/ROTDER/ as a module, without the unused SQOD, SQED.

1C 2C 3C$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ 4C ROTDER_MOD 5C$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ 6C 10/14/26 MHP via Claude 7C code changed to convert COMMON/ROTDER/ into this module. 8C 9C Imported with a blanket USE, the convention for the conversion. 10C All 2 files declared this block identically, so the USE 11C imports exactly the names the declaration already made global in 12C each scoping unit and cannot change meaning. 13C 14C The types restate what the implicit rules supplied: L is 15C LOGICAL*4, I/J/K/M/N are INTEGER*4, everything else REAL*8. 16C SAVE is explicit rather than relying on module variables being 17C implicitly saved, which holds only from Fortran 2008 while ifort 18C Classic predates it. That matches COMMON's semantics. 19 MODULE ROTDER_MOD 20C 10/20/26 MHP via Claude 21C code changed to take JSON from DIMENSIONS_MOD instead of declaring 22C a PRIVATE copy here. 23 USE DIMENSIONS_MOD 24 25 IMPLICIT NONE 26 SAVE 27 28 REAL*8 :: SQOT(JSON) 29 REAL*8 :: SQET(JSON) 30 REAL*8 :: FRACNUC(JSON) 31 32 END MODULE ROTDER_MOD

1"""Python version of rotder_mod.f (YREC 7be4133): derivatives at each shell 2for the rotational mixing, formerly COMMON/ROTDER/. 3 4Translates: rotder_mod.f#ROTDER_MOD (7be4133) 5 6Module-level names, as in the Fortran module, in lower case. Routines that 7USE ROTDER_MOD import this module and write ``rotder_mod.<name>``. 8Set by coefft (when lrot), read by setupv. 9""" 10 11import numpy as np 12 13from pyrec import dimensions_mod 14 15_JSON = dimensions_mod.json 16 17# Fortran lines 28–30. 18sqot = np.zeros(_JSON + 1) # dln kappa / dln T, index 0 unused 19sqet = np.zeros(_JSON + 1) # dln epsilon / dln T 20fracnuc = np.zeros(_JSON + 1) # nuclear share of the energy generation