ntrfc.turbo package

Subpackages

Submodules

ntrfc.turbo.bladeloading module

ntrfc.turbo.bladeloading.calc_cf(tau_w, u_inf, rho_inf)

Calculates skin friction coefficient

Parameters:

  • tau_w (float) – wall shear stress

  • u_inf (float) – freestream velocity

  • rho_inf (float) – freestream density

Returns:

skin friction coefficient

Return type:

float

ntrfc.turbo.bladeloading.calc_inflow_cp(px, pt1, p1)
Parameters:

  • px – pressure at position

  • pt1 – total pressure inlet

  • p1 – pressure inlet

Returns:

lift coefficient

ntrfc.turbo.bladeloading.calc_zeta(pt1, pt2x, p2)

Calculates the Total Pressure Loss Coefficient (Zeta) for a fluid system.

Parameters:

pt1 : float : Upstream total pressure [Pa] pt2x : float : Downstream total pressure [Pa] p2 : float : Downstream static pressure [Pa]

Returns:

zeta : float : Total Pressure Loss Coefficient (Zeta) [dimensionless]

ntrfc.turbo.cascade_geometry module

ntrfc.turbo.cascade_geometry.calcmidpassagestreamline(x_mcl, y_mcl, beta1, beta2, x_inlet, x_outlet, t)

Returns mid-passage line from sceletal-line Returns two lists of Points representing a curve through the passage Input: x_mcl = Tuple y_mcl = Tuple beta1, beta2 = Angle in deg - Beta = Anströmwinkel x_inlet, x_outlet = scalar - representing position x-component of in/outlet t = scalar pitch

ntrfc.turbo.domaingen_cascade module

ntrfc.turbo.domaingen_cascade.cascade_2d_domain(profilepoints2d, x_inlet, x_outlet, pitch, unit, blade_shift, alpha, path=False)

profilepoints2d = 2d numpy array

ntrfc.turbo.domaingen_cascade.cascade_3d_domain(sortedPoly, psPoly, ssPoly, per_y_upper, per_y_lower, inletPoly, outletPoly, zspan, avdr=1, path=None)

ntrfc.turbo.integrals module

ntrfc.turbo.integrals.avdr(rho_1, mag_u_1, beta_1, rho_2, mag_u_2, beta_2)
Parameters:

  • rho_1 – float

  • mag_u_1 – float

  • beta_1 – float

  • rho_2 – float

  • mag_u_2 – float

  • beta_2 – float

Returns:

float

ntrfc.turbo.pointcloud_methods module

ntrfc.turbo.pointcloud_methods.calcMidPassageStreamLine(x_mcl, y_mcl, beta1, beta2, x_inlet, x_outlet, t)

Calculate the midpoint stream line curve through a passage.

Parameters:

x_mclarray_like

The x-coordinates of the mid-chord line.

y_mclarray_like

The y-coordinates of the mid-chord line.

beta1float

The angle in degrees representing the inflow angle at the inlet.

beta2float

The angle in degrees representing the outflow angle at the outlet.

x_inletfloat

The x-coordinate of the inlet position.

x_outletfloat

The x-coordinate of the outlet position.

tfloat

The pitch of the midpoint stream line.

verbosebool, optional

If True, a plot of the midpoint stream line is displayed.

Returns:

x_mpsl_refarray_like

The refined x-coordinates of the midpoint stream line.

y_mpsl_refarray_like

The refined y-coordinates of the midpoint stream line.

ntrfc.turbo.pointcloud_methods.extractSidePolys(ind_1, ind_2, sortedPoly)
ntrfc.turbo.pointcloud_methods.is_counterclockwise(xs, ys)
ntrfc.turbo.pointcloud_methods.mid_length(ind_1, ind_2, sorted_poly)

calc length of a midline. currently only used in the iterative computation of LE and TE index of a profile. probably this method is not necessary, as it is only two lines :param ind_1: index LE :param ind_2: index TE :param sorted_poly: pv.PolyData sorted :return: length

ntrfc.turbo.pointcloud_methods.midline_from_sides(ps_poly, ss_poly)

ntrfc.turbo.probegeneration module

ntrfc.turbo.probegeneration.create_midpassageprobes(midspan_z, x_inlet, x_outlet, pitch, beta1, beta2, midspoly, nop_streamline)
ntrfc.turbo.probegeneration.create_profileprobes(ssPoly, psPoly, midspan_z, pden_ps, pden_ss, tolerance=1e-10)

Create profile probes from two PolyData objects.

Parameters: - ssPoly: PyVista PolyData object representing the suction side profile. - psPoly: PyVista PolyData object representing the pressure side profile. - midspan_z: Height of the midspan plane along the z-axis. - pden_ps: Density of the pressure side profile points. - pden_ss: Density of the suction side profile points. - tolerance: Small tolerance value to shift the 3D faces along their normals.

Returns: - probes_ss: PyVista PolyData object representing the profile probes on the suction side. - probes_ps: PyVista PolyData object representing the profile probes on the pressure side.

ntrfc.turbo.probegeneration.create_stagnationpointprobes(length, nop, sortedpoly, ind_vk, u_inlet, midspan_z)

ntrfc.turbo.profile_tele_extraction module

ntrfc.turbo.profile_tele_extraction.clean_sites(sites, boundary, tolerance_factor=0.05)
ntrfc.turbo.profile_tele_extraction.extract_vk_hk(sortedPoly)
ntrfc.turbo.profile_tele_extraction.pointcloud_to_profile(points)
ntrfc.turbo.profile_tele_extraction.skeletonline_completion(diag_dist, points, points_2d_closed_refined, sites_raw_clean)
ntrfc.turbo.profile_tele_extraction.voronoi_skeleton_sites(points_2d_closed_refined)

Module contents