Control of Flow Limitation in Flexible Tubes

Ruo-Qian Wang (Lead / Corresponding author), Teresa Lin, Pulkit Shamshery, Amos G. Winter V

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This paper proposes a new Starling resistor architecture to control flow limitation in flexible tubes by introducing a needle valve to restrict inlet flow. The new architecture is able to separately control the activation pressure and the flow rate: The tube geometry determines the activation pressure and the needle valve determines the flow rate. A series of experiments were performed to quantify the needle valve and the tube geometry's effect on flow limitation. The examined factors include the inner diameter, the length, and the wall thickness. A lumped-parameter model was developed to capture the magnitude and trend of the flow limitation, which was able to satisfactorily predict Starling resistor behavior observed in our experiments.
Original languageEnglish
Article number013401
Number of pages8
JournalJournal of Mechanical Design
Issue number1
Early online date3 Oct 2016
Publication statusPublished - Jan 2017


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