Free Webinars
This two part series on Hull-Propeller Interaction complements our previous webinar on propeller-radiated noise with a focus on Wake Fields (Part 1) and Propeller Performance (Part 2). We discuss in…
This two part series on Hull-Propeller Interaction concludes with a session on Propeller Performance (Part 2). We discuss “wake-adapted” propeller design and analysis, as well as differences between…
As we analyze or design a vessel, we use NavCad for hydrodynamic and propulsion system simulation. The Vessel-Propulsor-Drive system model is built upon predictions for the various component pieces…
Surface-piercing propellers (SPPs) have a very specific blade form, with cleaver shaped outlines, high pitch-to-diameter ratios, and carefully crafted wedge-shaped sections. As a result, successful…
The evaluation of Propeller Radiated Noise (PRN) has always been part of the assessment of internal noise, vibration, and habitability. In recent years, PRN has become a focal point for international…
We all know that waterjets are a very effective propulsor for high speed craft. But how do we model waterjet performance for speed-power calculations? What is the influence of hull form on their ability to drive…
Tugs, trawlers, and other workboats require the ability to generate thrust for more than their own transit. They need supplemental thrust – known as “towpull” – to pull nets or push other boats. More…
Vessel hull form drag is the principal system load that ultimately determines engine power, fuel consumption, and emissions, and we know that reducing this hydrodynamic “cost” is an important design…
We all know about planing hull drag prediction and typical hull form parameters – such as deadrise, LCG, chine beam. But what about the longitudinal and transverse variation in deadrise? Or how catamarans…
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