Calculation Method of Added Resistance in Short Crested Irregular Waves

Added resistance in short crested irregular waves, , is caluclated from the following equation;

：Added resistance in regular waves
：Wave spectrums

Here, the wave spectrum is the one described in IACS Rec. No. 34^*.

^*Reference
International Association of Classification Societies: Standard Wave Data, IACS Rec. No.34 (Rec.2000/Corr.2001)