libvisc

Implements Ubbelohde-Walther equation (ASTM D341) and ASTM D2270 (Viscosity Index) implementation in C++

INSTALL

./configure
make
make install

Example

#include "libvisc.h"
#include <iostream>

int main() {

    using namespace std;
    
    /* Initializing the lubricant with label, viscosity @ 40 and viscosity at 100 */
    Lubricant lube("Paraffinic spindle oil", 30, 5.23);

    cout << "vi = " << lube.vi() << endl;
    cout << "Viscosity @ 50C is " << lube.visc(50) << endl;
    cout << "Viscosity @ 0C is " << lube.visc(0) << endl;
    cout << "V-T constant is " << lube.vtc() << endl;
    cout << "m constant is " << lube.m() << endl;

    return 0;
}

For more information look into libvisc.h as well as example.cpp, which generates a sample data. To compile this file, after ./configure run make example. Then run generated executable example (or example.exe)

    Label			visc40	visc100	visc60	vi	m	vtc
    ========================================================================
    Naphthenic spindle oil	30	4.24	13.1064	-25	4.24669	0.858667
    Paraffinic spindle oil	30	5.23	14.525	104	3.67225	0.825667
    Medium solvent extract	120	8	    36.9947	-49	4.47134	0.933333
    Medium polyglycol     	120	20.9	59.5139	200	2.52709	0.825833
    Medium silicone oil   	120	50	    86.3819	423	1.14093	0.583333
    Multigrade motor oil  	70	11.1	32.9198	150	3.08679	0.841429
    Ester oil             	30	5.81	15.2728	139	3.39742	0.806333
    Tribology-ABC         	68	8.6	    28.6455	96	3.60799	0.873529
    ========================================================================

COMPILE

Once livisc is installed you can link the library to your source code like so:

g++ your_prog.cpp -lvisc

To set a non-standart library path:

g++ -L"path/to/lib" your_prog.cpp -lvisc

TODO

Vogel-Cameron equation