At the imposed rotational speed (8000 rpm) and 7 blades, we obtained (tutorial propeller aircraft design(1/2)) thrust a little low 22 N instead of 30 N necessary to compensate the drag: To increase thrust without increasing the speed we could use what we have seen on the shape of the profiles, and increase the camber of our profile. Propeller, Ducted Fan & UAV/Drone Design DARcorporation engineers are capable of performing detailed aerodynamic design and analysis on any propeller or ducted fan. Flow characteristics around the propeller/fan rotor can be accurately analyzed and the optimal propeller layout can be determined to ensure superior aircraft performance.
Ensure strength and quality You can analyze the strength and materials of your designs using the Classification Society rules. PropCad can automate thickness calculations for fixed pitch, controllable pitch, and nozzle propellers – as well as highly skewed and ice-class propellers!
Supported classification societies include:. ABS – American Bearuea of Shipping. BV – Bureau Veritas. RINA – Registro Italiano Navale. LR – Llyod’s Register (UK). KR – Korean Register.
CCS – Chinese Classification Society. NK – Nippon Kaiji Kyokai (Japan).
Baltic – Sweedish/Finish Rules Additionally, Ice class designations are available for ABS Steel (A0,B0,C0,D0), BV/RINA (1D), and LR Ship rules (1D/1E), LR Naval rules (1AA, 1A, 1B, 1C) and Swedish/Finnish rules (1AA, 1A, 1B, 1C). What’s new in PropCad? Updated PropCad data-entry user-interface with theme support. Improved native CAD compatibility for Rhino, Solidworks, Creo, Powershape, and more!. New IGES export format for universal CAD compatibility. Hardware acceleration support for 3D rendering, including antialiasing.
3D rendering sections and mesh overlay display. 3D rendering of root fillet. Record high-resolution 3D animated videos and screenshots. New summary table of geometric characteristics. Interactive plotting, smoothing, and editing of radial distributions and 2D offsets. Plotting of blade outline and blade profile for quickly editing blade shape. Distribution editor for creating custom distribution files.
New PropCad template (hcpt) format. New PropCad human-readable file (hcpc) format. Updated Strength & Materials data entry interface. Updated all Classification Society rules to latest 2014 rules. Reference selection for Naval rule variants. Improved Classification Reports documenting intermediate calculations.
User-control of which specific rule variant to use for a given (FPP, CPP, ducted). Newly added NK and Baltic (Swedish-Finish) classification societies. Ice-class and highly-skewed propeller rules for all society rules. Improved PropCad Builder wizard data entry interface.
Single-click, preconfigured propeller templates for Gawn, Bseries, Kaplan and other common propeller styles. CAD-friendly tip option for modifying tip geometry to improve lofting during export. Separate control of r/R distribution from Sections definition. Dimensional and fully faired edge radius for leading and trailing edges. Parametric control of leading and trailing edge thicknesses and distributions.
Added Stacking options for control of section stacking about the generating line. Improved performance for parametrically adding/removing camber and cup. Full user-control of radial camber distribution and radial peak camber chordwise position. Full user-control of cup drop.
New cup options including face-only cup, and cup around tip. Support for user-created reference distributions.
New Hub data entry interface with Hub-shape presets. Generic and Cylinder hub shapes for easy creation of representative hubs.
User-defined for full user-control of hub diameters. SAE and Metric shaft rules to automatically set shaft-diameter and taper from the specified nominal shaft diameter. Estimate for hub position based on blade extents.
Estimate maximum fillet radius. New supplemental tools, including Transformations, BladeScan, and ScanConverter. New point-cloud ScanConverter for reverse engineering 3D scans. New CPP spindle transformation for rotating the blade through different pitch positions.
New pitch-plane transformation for calculating equivalent propeller geometry. Blade interference check for CPP operating in ducts or tunnels.
BladeScan utility for determining which series outline is the closest match for a given chord distribution. New CPP section report for reviewing pitch position effects on a single r/R position. Improved 2D Drawings. Fillet outlines on 2D drawing of hub. User-override of title block principle characteristics on 2D drawing. User-defined title block principle characteristic on 2D drawing.
Aerodynamic Design & Analysis DARcorporation engineers can perform detailed aerodynamic analysis on any flight vehicles using our experience and several Computational Fluid Dynamics (CFD) packages, such as Siemens STAR-CCM+ and Autodesk Simulation CFD. These CFD packages are used to simulate the air flow around aircraft and how the fluid interacts with the aircraft surfaces for any type of aircraft configuration. Coupled with our Advanced Aircraft Analysis software, the CFD results aid in aerodynamic and stability & control analysis for conventional and unconventional types of aircraft. DARcorporation also utilizes the Quasi-Vortex-Lattice Method, such as VORSTAB, to analyze both attached and vortex-separated flows to calculate longitudinal and lateral-directional aerodynamic characteristics for various aircraft configurations.
Using these CFD packages, we can also analyze and optimize airfoils to provide the optimal lift, drag, moments and pressure distribution for aircraft lifting surfaces such as wings, horizontal tails, vertical tails, canards and V-tails. The analytical methods used on wings and other lifting surfaces can be extended to blade analysis for rotors, including propellers, helicopters and wind turbine rotors. Based on Blade Element Momentum (BEM) theory, we further developed and customized our software for initial aerodynamic design of propeller/fan blades that can handle unconventional blade shape. Using CFD to simulate rotation, we can quantify the full thrust curve of the propeller/fan. The pressure distribution over the blades is extracted from CFD and torque (and thus energy) curves are constructed.
Using our own BEM software, we can design propellers/fans to maximize thrust and efficiency. The pressure distributions obtained from the CFD analyses are also used in the structural design and analysis of the flight vehicles or blades. Based on the aerodynamic design, a wind tunnel model can be designed, constructed and tested. CFD simulation techniques can also apply to engine inlet design and engine duct flow behavior prediction.
Over the years, DARcorporation has developed a unique expertise in aerodynamic design of airplanes, wind turbines, fans, inlets and rotors. Sample Projects. Check out our page to learn more about our CFD capabilities. Proposal & Rates Please contact us for additional information or a detailed proposal. Your detailed proposal will include cost, calendar schedule and estimated man-hours per task. This will be provided at no cost or obligation. We look forward to hearing from you!
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