A　stepwise　simulation　method　was　used　to　accurately　and　efficiently　design　a　pressure-compensating　emitter.　CAD　models,　Fluent　and　Ansys,　were　used　to　simulate　the　hydraulic　performance　of　the　pressure-compensating　emitters.　A　12-mm　diameter　cylindrical　pressure-compensating　emitter　was　designed　with　the　pressure-flow　curve　predicted　numerically.　The　emitter　was　then　manufactured　using　rapid　prototyping　&　manufacturing　with　hydraulic　tests　to　measure　the　pressure-flow　curve　for　the　emitter.　Comparison　of　the　practical　pressure-flow　curve　with　the　predicted　one　shows　that　they　agree　very　well　within　the　pressure　range　from　50　kPa　to　150　kPa,　but　differ　over　150　kPa.