Isifudumezi sombane esingaqhushumbayo luhlobo oluthile lokusebenzisa amandla ombane aguqulwa abe ngamandla obushushu ukufudumeza izinto eziza kufudunyezwa.Ngexesha lomsebenzi, ubushushu obuphantsi bolwelo oluphakathi bungena kwizibuko legalelo phantsi koxinzelelo ngombhobho, kwaye buthatha amandla obushushu obuphezulu obuveliswa yinto yokufudumeza yombane ecaleni kwendlela yokutshintshiselana ngobushushu ngaphakathi kwinqanawa yokufudumeza yombane, kusetyenziswa indlela eyilelweyo. ngomgaqo we-fluid thermodynamics.