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LINK errors compiling udf

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Old   December 5, 2018, 07:13
Default LINK errors compiling udf
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Marco
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Hi everyone,

my task is to simulate an oscillating cylinder in vortex shedding conditions.

You found in below the UDF and the messages of fluent's console.
I'm quite sure about the udf, the cylinder has to oscillate along y with a frequency of 5Hz and an amplitute of 30mm.
My issues are related to visual studio end link errors. I started fluent by cross platform visual studio 2017 prompt, both pc and ansys are x64.

#include "udf.h"

DEFINE_CG_MOTION(object_mov, dt, vel, omega, time, dtime)
{
real a, w, pi;

pi = 3.1415;

/* define motion variables */
a = 0.03; /* 30mm movement amplitude */
w = 2 * pi * 5; /* 5Hz frequency */

/* define object movement law */
vel[0] = 0;
vel[1] = a * w * sin(w*time);
vel[2] = 0;

}

> Copied D: est_UDF/myUDF.c to libudf\src
Creating user_nt.udf file for 2ddp_host ...
(system "copy "C:\PROGRA~1\ANSYSI~1\v190\fluent"\fluent19.0.0\sr c\udf\makefile_nt.udf "libudf\win64\2ddp_host\makefile" ")
1 file copiati.
(chdir "libudf")(chdir "win64\2ddp_host")# Generating ud_io1.h
myUDF.c
# Generating udf_names.c because of makefile myUDF.obj
udf_names.c
# Linking libudf.dll because of makefile user_nt.udf udf_names.obj myUDF.obj
Microsoft (R) Incremental Linker Version 14.16.27024.1
Copyright (C) Microsoft Corporation. All rights reserved.

Creazione della libreria libudf.lib e dell'oggetto libudf.exp
myUDF.obj : error LNK2019: riferimento al simbolo esterno _sin non risolto nella funzione _object_mov
myUDF.obj : error LNK2001: simbolo esterno __fltused non risolto
LINK : error LNK2001: simbolo esterno __DllMainCRTStartup@12 non risolto
C:\PROGRA~1\ANSYSI~1\v190\fluent\fluent19.0.0\mult iport\win64\net\shared\mport.lib : warning LNK4272: il tipo 'x64' del computer della libreria è in conflitto con il tipo 'x86' del computer di destinazione
C:\PROGRA~1\ANSYSI~1\v190\fluent\fluent19.0.0\win6 4\2ddp_host\fl1900.lib : warning LNK4272: il tipo 'x64' del computer della libreria è in conflitto con il tipo 'x86' del computer di destinazione
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\li b\x64\LIBCMT.lib : warning LNK4272: il tipo 'x64' del computer della libreria è in conflitto con il tipo 'x86' del computer di destinazione
libudf.dll : fatal error LNK1120: 3 esterni non risolti
Creating user_nt.udf file for 2ddp_node ...
(system "copy "C:\PROGRA~1\ANSYSI~1\v190\fluent"\fluent19.0.0\sr c\udf\makefile_nt.udf "libudf\win64\2ddp_node\makefile" ")
1 file copiati.
(chdir "libudf")(chdir "win64\2ddp_node")# Generating ud_io1.h
myUDF.c
# Generating udf_names.c because of makefile myUDF.obj
udf_names.c
# Linking libudf.dll because of makefile user_nt.udf udf_names.obj myUDF.obj
Microsoft (R) Incremental Linker Version 14.16.27024.1
Copyright (C) Microsoft Corporation. All rights reserved.

Creazione della libreria libudf.lib e dell'oggetto libudf.exp
myUDF.obj : error LNK2019: riferimento al simbolo esterno _sin non risolto nella funzione _object_mov
myUDF.obj : error LNK2001: simbolo esterno __fltused non risolto
LINK : error LNK2001: simbolo esterno __DllMainCRTStartup@12 non risolto
C:\PROGRA~1\ANSYSI~1\v190\fluent\fluent19.0.0\mult iport\win64\mpi\shared\mport.lib : warning LNK4272: il tipo 'x64' del computer della libreria è in conflitto con il tipo 'x86' del computer di destinazione
C:\PROGRA~1\ANSYSI~1\v190\fluent\fluent19.0.0\win6 4\2ddp_node\fl_mpi1900.lib : warning LNK4272: il tipo 'x64' del computer della libreria è in conflitto con il tipo 'x86' del computer di destinazione
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\li b\x64\LIBCMT.lib : warning LNK4272: il tipo 'x64' del computer della libreria è in conflitto con il tipo 'x86' del computer di destinazione
libudf.dll : fatal error LNK1120: 3 esterni non risolti

Done.

I hope you'll help to find a solution.

Thx for your time
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