Valiation Delta Wing NASA experiment for different leading edge radii

Delta Wing - VORTEX AND BOUNDAYR LAYER INTERACTION----Investigation also performed within NATO VFE 2 project (DLR)

Parameters

alpha = 13.3 Mach = 0.4 Re = 6.0e06

Other parameters may be considered

References

Chu J. and Luckring J. N. (1996). Experimental surface pressure data obtained on 65deg delta wing accorss Reynolds numerb and Mach number ranges. Nasa Technical Memorandum (TM 4645)

References

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19960047655.pdf/
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19960025648.pdf/
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19960020459.pdf/
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19960020435.pdf/

Define case name

This is the solver case to be analysed


In [1]:
case_name = 'Delta_Wing_Large_Radius'

Define Data Location

For remote data the interaction will use ssh to securely interact with the data
This uses the reverse connection capability in paraview so that the paraview server can be submitted to a job scheduler
Note: The default paraview server connection will use port 11111


In [2]:
remote_data = True

data_dir='/gpfs/cfms/workarea/projects/hyper_flux/delta_wing_high_Re/Delta_Wing_Large_Fine_Mesh'

data_host='acimpoeru@vis03'

remote_server_auto = True

paraview_cmd='mpiexec /gpfs/apps/bin/pvserver'
if not remote_server_auto:
    paraview_cmd=None

if not remote_data:
    data_host='localhost'
    paraview_cmd=None

Initialise Environment


In [3]:
%pylab inline
from paraview.simple import *

paraview.simple._DisableFirstRenderCameraReset()
import pylab as pl


Populating the interactive namespace from numpy and matplotlib
paraview version 4.2.0-75-gff3f889

Data Connection

This starts paraview server on remote host and connects


In [ ]:
from zutil.post import pvserver_connect
if remote_data:
    pvserver_connect(data_host=data_host,data_dir=data_dir,paraview_cmd=paraview_cmd)

Get control dictionary


In [5]:
from zutil.post import get_case_parameters,print_html_parameters
parameters=get_case_parameters(case_name,data_host=data_host,data_dir=data_dir)

Get status file


In [6]:
from zutil.post import get_status_dict
status=get_status_dict(case_name,data_host=data_host,data_dir=data_dir)
num_procs = str(status['num processor'])

Define test conditions


In [7]:
alpha = 13.3 # degrees
reference_area = 594720.0 # inches^2
reference_length = 275.8 # inches, mean chord. 
reference_span = 1156.75 # inches

from IPython.display import HTML
HTML(print_html_parameters(parameters))


Out[7]:
pressure407552.8904
temperature322.0389
Reynolds No6000000.0
Ref length0.66666666
Speed0.0
Mach No0.4

In [8]:
import zutil
import zutil.post as post
reload(zutil)
reload(post)
from zutil.post import cp_profile_wall_from_file
from zutil.post import cp_profile_wall_from_file_span
def plot_cp_profile(ax,file_root,loc):
    force_data = cp_profile_wall_from_file_span(file_root,
                              [1.0,0.0,0.0],
                              [loc, 0.0 , 0.0],
                              func=plot_array,
                              axis=ax,
                              loc=loc,
                              alpha=alpha)
loop = 0
loop_data = {}
def plot_array(data_array,pts_array,**kwargs):
    global loop, loop_data
    ax = kwargs['axis']
    loc = kwargs['loc']
    #alpha = kwargs['alpha']
    cp_array = data_array.GetPointData()['cp']
    chord_array = data_array.GetPointData()['chord']
    ax.plot(chord_array, cp_array , 'b.',color='k',label='zCFD SST', markersize=20)
    ax.legend(loc = 'upper left',numpoints=1,prop = prop)
    loop_data[loop] = (chord_array,cp_array)
    loop += 1

Comparison Data


In [9]:
# Reproduce plots from delta wing presentation

from collections import OrderedDict
station_values = OrderedDict([("S01" , 0.2), ("S02" , 0.4), ("S03" , 0.6), ("S04" , 0.8),("S05",0.95)])

Experimental data


In [10]:
import zutil
import zutil.post as post
from zutil.post import get_csv_data
from collections import OrderedDict



#stat = OrderedDict([("S01" ,(0.2,cp_u_s02[0],cp_u_s02[1],cp_l_s02[0],cp_l_s02[1])),
#                    ("S02" ,(0.4,cp_u_s04[0],cp_u_s04[1],cp_l_s04[0],cp_l_s04[1])),
#                    ("S03" ,(0.6,cp_u_s06[0],cp_u_s06[1],cp_l_s06[0],cp_l_s06[1])),
#                    ("S04" ,(0.8,cp_u_s08[0],cp_u_s08[1],cp_l_s08[0],cp_l_s08[1]))
#                  ])


[]

Cp Profile


In [11]:
from zutil.post import get_case_root
from zutil.post import get_chord_spanwise
import matplotlib.font_manager as fm
prop=fm.FontProperties(size=20)

fig = pl.figure(figsize=(30, 50),dpi=150, facecolor='w', edgecolor='k')
fig2 = pl.figure(figsize=(30, 50),dpi=150, facecolor='w', edgecolor='k')

plot = 1
for key in stat:
        loc = stat[key][0]
        ax = fig.add_subplot(len(station_values),2,plot)
        ax.set_title('$C_p$ at x/c = '+str(loc), fontsize=40, fontweight='bold')
        ax.grid(True)
        ax.set_xlabel('y/c - Spanwise',fontsize=20, fontweight='bold')
        ax.set_ylabel('$C_p$',fontsize=50, fontweight='bold')
        ax.axis([0.0,1.01,0.5,-3.0])
        plot_cp_profile(ax,get_case_root(case_name,num_procs),loc)
        ax.plot(stat[key][1],stat[key][2],'b.',color='r',label='Experiment', markersize=20)
        ax.plot(stat[key][3],stat[key][4],'b.',color='r', markersize=20)

        ax.legend(loc = 'upper left',numpoints=1,prop = prop)
        plot += 1    
from matplotlib.backends.backend_pdf import PdfPages
pp = PdfPages('Large_delta.pdf')
pp.savefig()
pp.close()
fig.savefig("Large_delta.png")
show()
from IPython.display import FileLink, display 
display(FileLink('Large_delta.png'))


use append poly data filter
use append poly data filter
use append poly data filter
use composite data append
use append poly data filter
use append poly data filter
use append poly data filter
use composite data append
use append poly data filter
use append poly data filter
use append poly data filter
use composite data append
use append poly data filter
use append poly data filter
use append poly data filter
use composite data append
<matplotlib.figure.Figure at 0x116141150>

Convergence


In [12]:
from zutil.post import residual_plot, get_case_report
residual_plot(get_case_report(case_name))
show()


Cleaning up


In [13]:
#if remote_data:
#    #print 'Disconnecting from remote paraview server connection'
#    Disconnect()